The Structure of the Earth and Plate Tectonics Structure of the Earth Mantle • The Earth is made up of 3 main layers: Outer core Inner core – Core – Mantle – Crust Crust The Crust • This is where we live! • The Earth’s crust is made of: Continental Crust Oceanic Crust - thick (10-70km) - buoyant (less dense than oceanic crust) - mostly old - thin (~7 km) - dense (sinks under continental crust) - young How do we know what the Earth is made of? • Geophysical surveys: seismic‚ gravity‚
Premium Plate tectonics
Abstract Energy is an important part of our everyday lives. Energy can come in many different types‚ and forms it can be used for many different purposes. Energy has many different usages and can be converted from one form of usage to another form of usage depending on what the need is. One form of energy conversion is the use of food to supply people’s bodies with energy. Another form of energy is how coal is converted into electricity. Fuel is another form of energy that can be used
Premium Energy Theory of Forms
The initial theory of continental drift was put forward by a German meteorologist Alfred Wegener in 1915. This theory did not seem credible until it was connected with the plate tectonic theory in the mid 1960’s. The Tectonic plate theory had an advantage over previous predictions as it could be supported by observed occurrences. One such thing that supports these two theories is that seen from space the continents look as if they might once have been joined together. This possible idea was then
Premium Plate tectonics
Plate Tectonics Paper Michelle Tillman GLG/220 1/12/15 Jessica Terrien Dunn First and most important hazard is the ground actually shaking. This causes building to be damaged or the ground/foundation to settle different than it was. If the soil is liquefied then the building can actually sink into the ground. This can make the buildings also tip and lean. Los Angeles was built on a myriad of transform faults that include Santa Monica fault‚ the San Fernando fault‚ and Northridge/Santa Barbara fault
Premium Plate tectonics Earthquake San Andreas Fault
The theory of plate tectonics states that the Earth’s lithosphere is broken up into many different pieces separated by jagged cracks. These are called the tectonic plates. They are in slow‚ constant motion pushed by the convection currents in Earth’s asthenosphere. This theory explains the process of sea floor spreading at mid-ocean ridges‚ and subduction at deep ocean trenches. It was proposed by J. Tuzo Wilson in 1965. He combined the discoveries of Harry Hess and Alfred Wegner to support this
Premium Plate tectonics
This archive file of GLG 220 Week 4 Discussion Questions shows the Solutions to the following problems: DQ 1: 1. How can an observer experience two unequal high tides during a day? 2. What is the composition of sea water? What does salinity mean? 3. Beach erosion is related to natural process such as long shore current. How is beach erosion also related to human activity? 4. How do oceans regulate climate? DQ 2: 1. The Arizona cities of Flagstaff and Phoenix are relatively close to one another
Premium University Ocean Academic degree
June 2011 plate tectonics and associated hazards Comment on the extent to which the features shown in the image support the theory of plate tectonics. To begin with we can see that many of the landmasses appear as separated jigsaw pieces with their complementary shaped coastlines. One example of this is how the North Western coastline of Africa could quite easily ‘slot into’ the North Eastern Coastline of America. This suggests that in the history of the Earth‚ these two land masses were once connected
Free Plate tectonics
spreading explain the movement of tectonic plates?! - Sea floor spreading in movement of tectonic plates is called divergent‚ the separation of two plate. This can be proved because magma comes out from the fault of ridge which means plate has open and it’s realising the magma. Other reason‚ if diverging is happening at one point‚ that means converging is happening at other end of plate‚ for example Himalayan mountain range at India and Nepal (converging) and other side of plate that contains India is having
Premium Plate tectonics
“Discuss the Extent to which volcanic and seismic activity are evidence for plate tectonic theory” (40) Plate tectonics is the theory that explains the structure and motion of the Earth’s lithosphere. The theory states that the Earth’s crust is split into large sections called tectonic plates‚ and these move relative to one another creating boundaries at which plates converge‚ diverge and move past each other. Alfred Wegener pioneered the theory of continental drift in the early 1900s which he supported
Premium Plate tectonics
RAPPEL A L’ORDRE: THE CASE FOR THE TECTONIC Kenneth Frampton Kenneth Frampton’s ‘Rappel a L’Ordre: The Case for the Tectonic’ identifies the issues in relation to the tectonic form‚ his intention is to make architecture step apart of just being part of a scenographic interpretation. The word tectonic is addressed from its different origins but overall referring to carpentry and its evolution into an aspect of poetry and art of construction. Tectonic objects are seen in two different forms;
Premium Metaphysics Ontology Kenneth Frampton